WO2019015517A1 - Interface de bus série universel, et terminal mobile - Google Patents

Interface de bus série universel, et terminal mobile Download PDF

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Publication number
WO2019015517A1
WO2019015517A1 PCT/CN2018/095288 CN2018095288W WO2019015517A1 WO 2019015517 A1 WO2019015517 A1 WO 2019015517A1 CN 2018095288 W CN2018095288 W CN 2018095288W WO 2019015517 A1 WO2019015517 A1 WO 2019015517A1
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WO
WIPO (PCT)
Prior art keywords
tongue
usb interface
plug
ground
serial bus
Prior art date
Application number
PCT/CN2018/095288
Other languages
English (en)
Chinese (zh)
Inventor
张加亮
刘运祥
帅飞伍
刘丰硕
Original Assignee
Oppo广东移动通信有限公司
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Filing date
Publication date
Application filed by Oppo广东移动通信有限公司 filed Critical Oppo广东移动通信有限公司
Publication of WO2019015517A1 publication Critical patent/WO2019015517A1/fr

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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/02—Contact members
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/40—Securing contact members in or to a base or case; Insulating of contact members
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/648—Protective earth or shield arrangements on coupling devices, e.g. anti-static shielding  

Definitions

  • the present application belongs to the field of mobile terminals, and in particular, to a universal serial bus USB interface and a mobile terminal.
  • the frequency of using the mobile terminal increases, the power of the mobile terminal battery is consumed a lot, and the battery needs to be charged frequently; due to the accelerated pace of life, especially the sudden and urgent, more and more users want to be able to The battery of the mobile terminal is charged with a large current.
  • the purpose of the present application is to provide a universal serial bus USB interface and a mobile terminal to solve the problem that the output signal of the existing USB interface is unstable and the USB interface is heated.
  • the purpose of the application is to provide a universal serial bus USB interface and a mobile terminal, so as to solve the problem that the output signal of the output terminal is unstable and the USB interface is heated due to the occurrence of the plugged portion in the floating state when the existing USB interface is being charged. .
  • the first aspect of the present application provides a universal serial bus USB interface
  • the USB interface includes: a USB interface body, a power cord plug with an external power cord, and a ground plug with an external ground wire, the power source a bottom of the line tongue and a bottom edge of the ground tongue are fixed to the USB interface body, the power cord tongue includes P connectors, and P is greater than or equal to 2, the ground tongue includes Q plug-in parts, and Q is greater than or equal to 2;
  • the power cord tongue further includes an insulating portion that insulates the P plug portions from each other, and/or the ground strap further includes an insulating portion, the insulating portion causing the Q The plugs are insulated from each other.
  • Another aspect of the present application provides a mobile terminal including the universal serial bus USB interface described above.
  • FIG. 1 is a structural diagram of a USB interface provided by an embodiment of the present application.
  • FIG. 2 is an internal structural diagram of a USB interface provided by an embodiment of the present application.
  • FIG. 3 is an internal structural diagram of a USB interface provided by another embodiment of the present application.
  • USB interface 4 is an internal structural diagram of a USB interface provided by another embodiment of the present application.
  • the charging adapter in the embodiment of the present application includes: a power adapter, a charger, an IPAD, a smart phone, and the like, which can output a power signal to charge the battery core (the battery of the mobile terminal).
  • the serial bus (USB) interface provided by the embodiment of the present application may be a socket or a plug.
  • the USB interface can be disposed on the power adapter or on the mobile terminal, and can be used for data transmission and charging when the USB interface is disposed on the mobile terminal.
  • the USB interface can support a USB plug including a power cord tongue having at least two plug portions and a ground plug having at least two plug portions, thereby using the embodiment provided by the embodiment of the present application.
  • the power cord tongue and the ground tongue can form at least two charging circuits with the USB plug to achieve high current charging of 3A or more.
  • the USB interface can also be used with existing MICRO USB plugs.
  • the structure of the universal serial bus USB interface provided by the embodiment of the present application shown in FIG. 1 is combined with the internal structure of the USB interface (not including the USB interface body 1 and the plug-in housing 2) shown in FIG. 1 and 2 are only for illustrating the USB interface provided by the embodiment of the present application, so that only the power cord tongue with two plug portions, the ground tongue with two plug portions, and Two power pins and a schematic diagram with two ground pins.
  • the universal serial bus USB interface provided by the embodiment of the present application includes: a USB interface main body, a power cord plug with an external power cord, a ground plug with an external grounding wire, and a bottom of the power cord plug and The bottom edge of the grounding tongue is fixed to the USB interface body, the power cord tongue includes P connectors, and P is greater than or equal to 2, and the ground tongue includes Q connectors. And Q is greater than or equal to 2;
  • the power cord tongue further includes an insulating portion that insulates the P plug portions from each other, and/or the ground strap further includes an insulating portion, the insulating portion causing the Q The plugs are insulated from each other.
  • the existing mobile terminal often uses the MICRO USB interface for charging, since the MICRO USB interface only includes: a power cord tongue having a plug portion, and a ground tongue having a plug portion a power pin that is connected to the power cord tongue and a ground pin that is connected to the ground plug. Therefore, the existing MICRO USB interface can only be performed through a power supply path and a charging circuit formed by a ground path. Charging, so that only up to 3 amps (A) of charging current can be supported, so charging is slow and time is wasted.
  • a power cord tongue having at least two plug portions and a ground tongue having at least two plug portions are provided on the existing USB interface. Therefore, when charging using the USB interface, it is possible to simultaneously receive electrical signals through a plurality of plug-in portions in the power cord tab, and share current through a plurality of power pins, and can support a large current charging of 3 amps or more, but when using the
  • the USB interface is connected to the USB interface of the ordinary plug or the socket, since the number of the plugging portions of the USB interface in the ordinary plug or the socket is less than the number of the plugging portions in the USB interface, the partial connection in the USB interface is made.
  • the plug-in portion is in a floating state, so that when the electrical signal is transmitted, the electrical signal still flows through the plug-in portion in the floating state, and the output signal of the output terminal is unstable and the USB interface is heated.
  • the present application provides a USB interface with an improved MICRO USB interface (socket or plug), a power cord plug having at least two plug portions, and at least two plug portions.
  • the grounding tongue is provided with an insulating portion between the plug portions of the power cord tongue or the plug portion of the ground strap. Therefore, when charging using the USB interface, it is possible to simultaneously receive electrical signals through a plurality of plug-in portions in the power cord tongue and share current through a plurality of power pins, thereby forming at least two by having a power plug and a ground tongue
  • the charging circuit can support large current charging of 3 amps or more, and is set between the plugs of the power cord tongues or the plugs of the ground tongue when charging with a normal USB interface.
  • the insulating portion is insulated between the plugged portion that is energized and the suspended plug portion, and the phenomenon that the current flowing through the plugged portion that is being energized flows through the suspended plug portion is reduced.
  • the USB interface provided in FIG. 1 and FIG. 2 is used as an example.
  • the embodiment of the present application adds a plug-in portion to the power cord tongue provided by the existing USB interface, which is equivalent to the design. Increases the current flowing through the area of the bottom of the power cord tongue; at the same time, in order to increase the current flowing through the bottom of the grounding plug, a plug is added to the grounding tongue provided by the existing USB interface.
  • the current flows through the power line plug 3 and the ground plug 7 after the area is increased, thereby effectively increasing the maximum charge current that can be supported, and the charge current ratio that can be supported is now
  • the charging current supported by the MICRO USB interface is twice or more, which meets the needs of high current charging.
  • the plug portion 31 and the plug portion 33 of the power cord plug 3 correspond to the USB plug.
  • the two power cords are connected to receive a high-current power signal output by the charging adapter through the USB plug; at the same time, the plug-in portion 71 and the plug-in portion 73 of the grounding plug 7 and the corresponding two plugs of the USB plug are
  • the ground wire is connected to form a charging circuit of a large current, and when the normal charging is performed, charging is performed only through the plug portion 31 of the power cord tongue 3 and the plug portion 71 of the grounding plug 7 at this time, in order to prevent the power cord
  • the plug portion 33 of the plug 3 and the plug portion 73 of the ground plug 7 are at the floating end, heat generated by the current flowing causes the USB interface to generate heat, and the following schemes can be adopted, as shown in FIG.
  • the first type The solution is to provide an insulating portion 34 between the P plug portions in the power cord tongue so as to insulate the P plug portions from each other; as shown in FIG. 3, the second scheme is to connect the ground plugs Q. An insulating portion 74 is disposed between the plug portions to insulate the Q plug portions from each other; as shown in FIG. 4, the third The solution is that an insulating portion 34 and an insulating portion 74 are disposed between P plugs in the power cord tab and between the Q plugs of the ground plug; the USB interface can be made by the above three solutions.
  • the plug-in portion of the ordinary USB interface is small, for example, usually five, the plug-in portion of the USB interface is more than the plug-in portion of the USB interface, and when the USB interface is connected to the ordinary USB interface
  • an insulating portion is provided between the connector portions of the power cord tongue or the connector portion of the ground cable tongue.
  • the power supply line tongue or the grounding plug connector portion and the suspended connector portion are insulated from each other, thereby reducing the current flowing through the plugged portion of the energized connector portion through the floating connector portion The phenomenon of fever.
  • the power cord tongue and the ground tongue are made of phosphor bronze.
  • the power cord tongue and the ground tongue in the existing MICRO USB interface for charging the battery of the mobile terminal are made of metal copper foil with a conductivity of less than 20%.
  • all the power cord tongues and the ground tongues included in the USB interface provided by the embodiments of the present application are made of phosphor bronze having a conductivity of 50%; therefore, the present application is implemented with respect to the existing MICRO USB interface.
  • the USB interface provided by the example can withstand a larger charging current.
  • the power cord tongue and the ground tongue are both made of phosphor bronze C7025.
  • the power cord tongue and the ground tongue are made of chrome bronze. All the power cord tongues and grounding plugs included in the USB interface provided by the embodiments of the present application are made of chrome bronze with a conductivity of 70%; therefore, compared with the existing MICRO USB interface, the invention provides The USB interface can withstand higher charging currents. More preferably, the power cord tongue and the ground tongue are both made of chrome bronze C18400.
  • the insulating portion 34 and the insulating portion 74 may be a non-conductive insulating sheet, an insulating medium or an insulating material disposed between the power line plug or the plug portion of the ground strip, and the insulating material may be plastic or resin. And organic compounds and the like.
  • the USB interface further includes: a power pin for charging a battery cell in the mobile terminal through the terminal, and a ground pin for forming a charging circuit for charging the battery cell; the power pin M, M is greater than or equal to 2, each power pin is connected to the bottom of the power cord tongue;
  • the USB interface further includes: a ground pin that is connected to the bottom of the grounding tongue; the ground stitch is N, N is greater than or equal to 2, and each of the ground plugs is at most One ground pin is electrically connected.
  • each power cable connector is electrically connected to at most one power pin.
  • each power cable connector is electrically connected to a power pin of the same row.
  • the two power pins (the power pin 8 and the power pin 9) are respectively connected to the bottom 32 of the power cord tab 3.
  • the power pin 8 is connected to the plug portion 33 of the power plug 3 in one-to-one correspondence.
  • the pins 9 are connected in one-to-one correspondence with the plug portions 31 of the power supply tabs 3, so that power signals received from the power cord tabs are transmitted in two ways through the power pin 8 and the power pin 9 to charge the cells of the mobile terminal.
  • each grounding connector is electrically connected to at most one ground pin, and the two ground pins (the ground pin 13 and the ground pin 14) are respectively inserted into the ground wire.
  • the bottom portion 72 of the tongue 7 is connected.
  • each ground wire insertion portion is electrically connected to the same ground pin.
  • the ground pin 13 is connected to the plug portion 71 of the ground wire plug 7 in a one-to-one correspondence.
  • the ground pin 14 is connected to the plug portion 72 of the ground plug 7 in one-to-one correspondence, and the negative pole of the battery cell of the mobile terminal can form an electrical path with the two ground pins through the circuit, and can be combined with two power pins (power supply) Pin 8 and power pin 9), power cord tab 3, and ground slug 7 together serve as part of the circuitry in the charging circuit that charges the cell.
  • the number of power pins and the number of ground pins are increased to form at least two charging circuits for charging the cells, thereby effectively reducing power loss and reducing heat generation. Avoid burning the charging circuit.
  • each of the power pins and each of the ground pins are made of phosphor bronze.
  • the power pin and the ground pin in the existing MICRO USB interface for charging the battery of the mobile terminal are made of metal copper foil with a conductivity of less than 20%.
  • all the power pins and the ground pins included in the USB interface provided by the embodiment of the present application are made of phosphor bronze having a conductivity of 50%; therefore, the USB provided by the embodiment of the present application is compared with the existing MICRO USB interface.
  • the interface can support a larger charging current when charging the battery of the mobile terminal.
  • each of the power supply pins and each of the ground pins are made of phosphor bronze C7025.
  • each of the power pins and each of the ground pins are made of chrome bronze.
  • Each of the power pins and each of the ground pins included in the USB interface provided by the embodiment of the present application is made of chrome bronze having a conductivity of 70%; therefore, compared with the existing MICRO USB interface, the invention provides the The USB interface can withstand higher charging currents.
  • the power cord tongue and the ground tongue are both made of chrome bronze C18400.
  • the insulating portion 34 of the power line tongue 3 is formed at the bottom portion 32 of the power cord, and the insulating portion 34 of the power cord tongue 3 passes. Forming an insulating medium in the bottom 3 of the power cord tongue;
  • the insulating portion 74 of the grounding tongue 7 is formed at the bottom portion 72 of the grounding tongue, and the insulating portion 74 of the grounding tongue passes through the bottom portion 73 of the grounding tongue.
  • the inner filled insulating medium is formed.
  • the USB interface provided by the embodiment of the present application is provided with an insulating portion on the power cord tongue 3 in order to insulate between the connector portions of the power cord tongue 3
  • the insulating portion 34 of the power cord tongue 3 is formed on the bottom portion 32 of the power cord, which separates the bottom portion 32 of the power cord tongue into a plurality of regions, between the two regions connected by the insulating portion 34.
  • the conductive material cannot be electrically connected, that is, the insulating medium is filled between every two connection regions.
  • the bottom portion 32 of the power cord tongue includes P connection regions, and each power cable connector is electrically connected to its corresponding power pin through a connection region.
  • the power cable connector connected to the connection region and the power pin corresponding thereto are not electrically conductive; similarly, as a technical solution or a parallel technical solution,
  • the insulating portion 74 of the grounding tongue is formed at the bottom portion 72 of the grounding tongue, and the bottom portion 72 of the grounding tongue is divided into Q connecting regions, each grounding plug portion Corresponding to the ground pin Electrically connecting through one connection region, filling the insulating medium between each two connection regions, and between the two connection regions adjacent to each other, the ground connection portions connected to the connection region and corresponding thereto
  • the ground pins are not electrically conductive;
  • the insulating portion 34 of the power cord tongue 3 is formed by filling an insulating medium in the bottom 32 of the power cord, as well as the same technical solution or a parallel technical solution, the ground plug
  • the insulating portion 74 of the tongue 7 is formed by filling an insulating medium
  • the outermost connection area of the P connection areas is larger than the area of the other connection areas, or formed at the bottom 72 of the ground tongue Among the Q connection areas, the area of the outermost connection area among the Q connection areas is larger than the area of the other connection areas. Since the USB interface is connected to the fast charge USB interface, the power supply pin and the ground pin located at the outermost side of the USB interface are connected. It will be connected to the fast charge USB interface. Therefore, the area of the outermost connection area is larger than that of other connection areas, which effectively increases the maximum charge current that can be supported. The charge current can be supported by the existing MICRO USB interface. The current is twice or more, which meets the needs of high current charging.
  • the charging voltage value is greater than or equal to the pre-charge.
  • the insulating portion 34 or the insulating portion 74 is in an insulated state when the charging voltage value is less than a preset value when the ordinary USB interface is connected for normal charging.
  • the insulating portion 34 or the insulating portion 74 may be an insulating material.
  • the insulating material is cross-linked by a nano-composite polyethylene material;
  • the nano-composite polyethylene material comprises 100 parts of low-density polyethylene, 0.1-0.5 by mass parts.
  • the antioxidant and 0.1-3 parts of the nanoparticles, the nanoparticles are selected from the surface modification treatment or the surface unmodified nano boron nitride, and the conductivity of the insulation is adjusted by adjusting the content of the nanoparticles, wherein the nanoparticles are preferably It is 2 parts, so that it is in an insulated state when the charging voltage is small during normal charging, and is in an on state when the charging voltage is large during rapid charging, and the present embodiment is
  • the composition of the insulating material is set to achieve the selective conduction of different charging voltages, and the insulating material is in an insulated state during normal charging, so that the charging current flows through the floating end, is in a conducting state during rapid charging, and increases the flow area of the charging current.
  • the insulating portion may be an insulating sheet, and a relay switch is disposed in the insulating sheet, and the relay switch connects two regions through an input end and an output end disposed on the insulating sheet, and the relay switch is in
  • fast charging that is, when the charging voltage is greater than or equal to the preset value
  • the conduction state is performed, so that the area on both sides of the insulating sheet is in an on state, and the current flowing through area is increased, and the relay switch is performing normal charging.
  • the insulating portion may be an insulating sheet, and the insulating sheet is provided with a controller, a spring switch and a conducting portion, and the controller performs fast charging.
  • the control spring switch pushes the conduction portion at the gap in the insulating sheet to connect the regions on both sides of the insulating sheet, so that the regions on both sides of the insulating sheet are in a conducting state, which can be realized.
  • the controller controls the spring switch to pull the conduction portion away from the gap in the insulating sheet when the charging voltage is less than the preset value, so as to block the area on both sides of the insulating sheet to make the insulation
  • the areas on both sides of the sheet are insulated, which makes it possible to insulate between the charging plug and the non-charging plug during normal charging.
  • the USB interface further includes: a data line positive tongue, a data line tongue, a data line negative tongue, a data positive pin, a data pin, and a data negative pin;
  • a bottom of the data line positive tongue, a bottom of the data line tongue, and a bottom of the data line negative tongue are fixed to the USB interface body, the data line is at the bottom of the tongue and the data The bottom of the positive pin is connected, the bottom of the data line tab is connected to the bottom of the data pin, and the bottom of the data line negative is connected to the bottom of the data negative pin.
  • the USB interface provided by the embodiment of the present application can be used for large current charging, and can also be used for data communication between two mobile terminals; specifically, when moving When the terminal uses the USB interface for data communication, the power cord plug 3 having at least two plug portions, the ground plug 7 having at least two plug portions, at least two power pins, and at least two grounds The pin transmits a high current power signal to drive another mobile terminal to operate.
  • differential data can be transmitted through the data line positive plug 5 and the data line negative plug 4, the data positive pin 11 and the data negative pin 10.
  • the mobile terminal uses OTG technology for data transmission, it can be realized by using the data line plug 6 and the data pin 12.
  • USB interface provided by the embodiment can be used for cooperation with a USB plug including a power cord tongue having at least two plug portions and a ground plug having at least two plug portions for data transmission and large Current charging.
  • the USB interface further includes a plug-in housing, a plug portion of the power cord plug, a plug portion of the ground strap, and a plug of the data line positive tongue
  • the connecting portion, the insertion portion of the data line tab, and the insertion portion of the data line negative tongue are all sleeved and fixed inside the plug housing.
  • the meaning of the socket fixed to the plug housing refers to the plug portion of the power cord plug, the plug portion of the ground strap, the plug portion of the data line positive tongue, and the data line plug.
  • the plug portion of the tongue and the plug portion of the data line negative tongue are sleeved in the plug housing and fixed on the plug housing.
  • the USB plug can be better fixedly connected with the USB interface provided in this embodiment, so that the plug portion of the plug (power cord)
  • the plug portion 61 of the 6 and the plug portion 41 of the data line negative plug 4 can be in good contact with the corresponding plug in the USB plug and achieve good signal transmission.
  • the power line plug includes a P plug portion, a plug portion of the data line negative plug, a plug portion of the data line positive plug, and the data.
  • the plug portion of the line tongue and the Q plug portions included in the ground tongue are equally spaced.
  • the plug portion 33 of the plug portion 31 of the power cord tab 3, the plug portion 71 and the plug portion 73 of the ground plug 7 and the data are not limited.
  • the insertion portion 51 of the line positive tongue 5, the insertion portion 61 of the data line tongue 6, and the insertion portion 41 of the data line negative tongue 4 are arranged at the same time, and the insertion portions are arranged at equal intervals.
  • the spacing between each two adjacent plugs is: the spacing of the corresponding plugs of the adjacent plugs in the existing MICRO USB interface.
  • the existing MICRO USB interface is used to be plugged into the USB interface provided in this embodiment, the good connection between the plug portion 31 of the power cable connector 3 of the USB interface and the power cable in the MICRO USB interface can be ensured; The connection between the plug portion 71 of the grounding plug 7 and the ground of the MICRO USB interface can be ensured; and the plug portion 51 of the data line positive plug 5 and the data line plug 6 can be inserted. The portion 61 and the plug portion 41 of the data line negative plug 4 are correspondingly inserted into the data line positive, data line and data line of the MICRO USB interface.
  • the power line plug includes a P plug portion, a plug portion of the data line negative plug, a plug portion of the data line positive plug, and the data.
  • the plug portion of the line tongue and the Q plug portions included in the ground line tongue are sequentially arranged at equal intervals.
  • the meaning of the equidistant arrangement in sequence refers to the P plug portions included in the power cord plug, the plug portion of the data line negative plug, the plug portion of the data line positive plug, and the data line.
  • the plug portion of the tongue and the Q plug portions included in the ground tongue are arranged in order and the pitch of the adjacent two plug portions is the same.
  • the embodiment of the present application also sequentially arranges the tongues according to the order of the power cord tongue 3, the data line negative tongue 4, the data line positive tongue 5, the data line tongue 6 and the ground tongue 7
  • the equal spacing is embedded and fixed in the USB interface body 1; at the same time, the arrangement is fixed in the following order: the plug portion 33 of the power cord plug 3, the plug portion 31 of the power cord tab 3, the data
  • the insertion portion 41 of the line negative tongue 4 the insertion portion 51 of the data line positive tongue 5, the insertion portion 61 of the data line tongue 6, and the insertion portion 71 of the ground tongue 7 And a plug portion 73 of the ground tongue 7 .
  • the power cable, the data line negative, the data line positive, the data line, and the ground line in the MICRO USB interface can respectively be connected to the power line plugs in the USB interface.
  • the data line negative tongue 4, the data line positive tongue 5, the data line tongue 6 and the ground thread tongue 7 are correspondingly connected. Achieve good compatibility with existing MICRO USB interfaces.
  • one of the power cord plugs adjacent to the plug portion of the data line negative plug is inserted into another one of the power cord tabs. unit;
  • One of the grounding lugs adjacent to the insertion portion of the data line tab is inserted into another one of the grounding lugs.
  • one of the plug portions 33 of the power cord tongue 3 is designed to be shorter, and the ground is also One of the plugs 73 of the line tongue 7 is designed to be shorter, so that when the existing MICRO USB plug is used for plugging, the USB interface provided in FIGS. 1 and 2 uses only the plug of the data line positive tongue 5 51.
  • the plug portion 61 of the data line plug 6, the plug portion 41 of the data line negative plug 4, the plug portion 31 of the power line plug 3, and the long plug portion 71 of the ground plug 7 respectively Connect to the corresponding plug in the MICRO USB plug for data communication or charging.
  • the plug portion 33 of the power cord tab 3 and the plug portion 73 of the ground strap 7 are all freely connected (ie, not connected to the power cord and the ground of the MICRO USB plug).
  • the long plug portion 31 of the power cord tongue 3, the long plug portion 71 of the ground strap 7 , the plug portion 51 of the data line positive tongue 5, the The plug portion 61 of the data line tab 6 and the plug portion 41 of the data line negative plug 4 extend in the insertion direction by an equal length.
  • the long plug portion 71 of the ground plug 7 and the power cord tongue 3 are inserted long.
  • the connecting portion 31, the insertion portion 51 of the data line positive tongue 5, the insertion portion 61 of the data line tongue 6, and the insertion portion 41 of the data line negative tongue 4 are of equal length; Yes, designed to be the length of the plug of the plug in the existing MICRO USB interface.
  • the long plug portion 71 of the ground plug 7 , the long plug portion 31 of the power cord tab 3 , the plug portion 51 of the data line positive plug 5 , and the data line tab 6 The plug portion 61 and the plug portion 41 of the data line negative plug 4 are designed to be long, and when designed to have the same length, the plug portion can be properly inserted into the existing MICRO USB interface. . Achieve good data communication and achieve good transmission of power and ground signals.
  • all of the short plug portions of the power cord tongue and all of the short plug portions of the ground strip extend in the plugging direction by an equal length.
  • the short plug portion 33 of the power cord tongue 3 and the short plug portion 73 of the ground strap tongue 7 extend equally in the plugging direction. length. Specifically, the length of the short plug portion 33 of the power cord tongue 3 and the short plug portion 73 of the ground strap 7 are designed to be outwardly extended; thus, when compared with the existing After the MICRO USB interface is plugged in, the short plug portion 33 of the power cord tongue 3 and the short plug portion 73 of the ground strap 7 are not connected to the plugged pins, and are in an empty state. To enable compatibility with existing, standard MICRO USB interfaces.
  • the terminals of the M power pins, the terminals of the data negative pins, the terminals of the data positive pins, the terminals of the data pins, and the terminals of the N pins are Arranged by spacing.
  • the plug portion 31 of the power cord tongue 3 is inserted into the plug portion 33, the plug portion 71 of the ground strip 7 and the plug portion 73, and the data line is inserted.
  • the terminals of the two power supply pins power supply
  • the terminal 82 of the pin 8 and a terminal 92 of the power pin 9 the terminals of the two power supply pins (power supply)
  • a terminal 102 of the data negative pin 10 a terminal 112 of the data positive pin 11, a terminal 122 of the data pin 12, and two of the ground pins
  • the order of sorting of the terminals (the terminal 132 of the ground pin 13 and the terminal 142 of the ground pin 14) is also fixed accordingly; similarly, the terminals of the pins arranged at equal intervals facilitate standard production and use.
  • the spacing between the terminals corresponding to each two adjacent pins is: the spacing between
  • the terminals of the M power supply pins, the terminals of the data negative pins, the terminals of the data positive pins, the terminals of the data pins, and the terminals of the N ground pins are sequentially arranged at equal intervals.
  • the order of the stitches is determined accordingly: the terminal 82 of the power pin 8
  • the terminal 92 of the power pin 9 the terminal 102 of the data negative pin 10 , the terminal 112 of the data positive pin 11 , the terminal 122 of the data pin 12 , the terminal 132 of the ground pin 13 , and the terminal 142 of the ground pin 14 .
  • the power pin located at the edge (the USB interface provided by the embodiment of the present application is newly added to the existing MIRCO USB interface) and the ground pin (the USB interface provided by the embodiment of the present application is existing)
  • the distance between each two power pins can be set according to the actual use, and the distance between each two pins can be set; that is, every two power pins are designed.
  • the distance between the two pins may not be equal to the distance between the existing equally spaced stitches, and the distance between each of the two stitches may not be equal to the distance between the existing equally spaced stitches. In this way, based on the compatibility of the USB interface with the existing MIRCO USB interface, the distance between the power pins can be changed and the distance between the ground pins can be changed.
  • the bottom width of the terminal of one power pin adjacent to the data negative pin is smaller than the bottom width of the terminal of the other power pin
  • the bottom width of the terminal of one of the ground pins adjacent to the data pin is smaller than the bottom width of the terminal of the other one of the pins.
  • the bottom width 81 of the power pin 8 is greater than the bottom width 91 of the power pin 9; the bottom width 141 of the ground pin 14 is greater than the bottom width 131 of the ground pin 13.
  • the power pin 8 having a wide bottom width is newly added for: shunting a large current when charging at a large current; because of a wide power pin at the bottom width 8 is mainly used for high current charging, so that in order to share most of the charging current and to be able to withstand large currents, the bottom width of the power pin 8 is designed to be wider than the bottom of the existing power pin 9.
  • the ground pin 14 having a wide bottom width is newly added with respect to the ground pin provided by the existing MICRO USB interface. In order to share most of the charging current and withstand a large current, the newly added ground pin 14 is added.
  • the bottom width is designed to be wider than the bottom of the existing ground pin 13.
  • the USB interface provided by the embodiment of the present application is improved on the basis of the existing MICRO USB interface, and has at least two power pins, at least two ground pins, a power cord tongue including two plug portions, and two
  • the grounding plug of the plug-in part increases the conductive area to enable large current, and increases the conductive area by design, and can support at least 3A and above charging current; if you continue to increase the bottom of the power cord tongue and the ground tongue
  • the conductive area at the bottom continues to increase the number of plugs in the power cord tab and continues to increase the number of plugs in the ground plug to support larger charging currents.
  • the conductive area of the bottom of the power cord tongue and the bottom of the grounding tongue can be reduced accordingly, or the support can be provided. Large charging current USB interface.
  • the pins including: each power pin, the data negative pin, the data positive pin, the data pin, and each ground pin
  • the method includes: the power line tongue, the data line negative tongue, the data line positive tongue, the data line tongue, and the ground tongue) all adopt an I-shaped design.
  • the pins and the tongues included in the USB interface provided by the embodiment of the present application adopt the I-shaped design, the compatibility with the existing design pins and the tongues can be achieved, and the existing MICRO USB interface can be well compatible.
  • the embodiment of the present application further provides a mobile terminal, where the mobile terminal includes the universal serial bus USB interface described above.
  • the charging adapter can also charge the cells of the mobile terminal through the USB interface.

Landscapes

  • Charge And Discharge Circuits For Batteries Or The Like (AREA)
  • Details Of Connecting Devices For Male And Female Coupling (AREA)

Abstract

La présente invention se rapporte au champ des terminaux mobiles, et concerne une interface de bus série universel (USB) et un terminal mobile. L'interface USB comprend : un corps principal, une languette d'insertion de câble de puissance conçue pour être connectée à un câble de puissance externe, et une languette d'insertion de câble de masse conçue pour être connecté à un câble de masse externe. Une partie inférieure de la languette d'insertion de câble de puissance et un bord inférieur de la languette d'insertion de câble de masse sont fixés au corps principal. La languette d'insertion de câble de puissance comprend P parties de connexion d'insertion, et P est supérieur ou égal à 2. La languette d'insertion de câble de masse comprend Q parties de connexion d'insertion, et Q est supérieur ou égal à 2. La languette d'insertion de câble de puissance comprend en outre une partie d'isolation assurant l'isolation entre les P parties de connexion d'insertion, et/ou la languette d'insertion de câble de masse comprend en outre une partie d'isolation assurant l'isolation entre les Q parties de connexion d'insertion. De cette manière, l'interface USB permet d'isoler une partie de connexion d'insertion excitée d'une partie de connexion d'insertion flottante, palliant ainsi la génération de chaleur à l'interface USB causée par un courant électrique de la partie de connexion d'insertion excitée circulant à travers la partie de connexion d'insertion flottante.
PCT/CN2018/095288 2017-07-21 2018-07-11 Interface de bus série universel, et terminal mobile WO2019015517A1 (fr)

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CN107230857B (zh) * 2017-07-21 2019-08-13 Oppo广东移动通信有限公司 通用串行总线usb接口和移动终端

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CN104577399A (zh) * 2015-01-09 2015-04-29 广东欧珀移动通信有限公司 电子连接器的插舌、移动终端和电源适配器
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